{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "45081176",
    "entityType": "User",
    "nonce": "0x18506f55dad230030c7698f4cc42d2a2f2c01e3dc4ab96aa9f70b8e6e5095f68",
    "signature": "0x954157be771e5a68db74de18ed219cda982691b0bd8d8793cc4b241be50232916d236c90443e8f304ad52d4fcb21fb3a18fda0abed5633d3766a918659d7b9621c",
    "signer": "0xC0eEcD5Ab99B0f0BCcD79Cf620CA23C758E8a338",
    "userId": "136979704"
  }
}